http://git-wip-us.apache.org/repos/asf/hbase-site/blob/f8d6f420/devapidocs/src-html/org/apache/hadoop/hbase/procedure2/store/ProcedureStore.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/procedure2/store/ProcedureStore.html b/devapidocs/src-html/org/apache/hadoop/hbase/procedure2/store/ProcedureStore.html index 748314e..6dcf0c1 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/procedure2/store/ProcedureStore.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/procedure2/store/ProcedureStore.html @@ -30,157 +30,173 @@ <span class="sourceLineNo">022</span><a name="line.22"></a> <span class="sourceLineNo">023</span>import org.apache.hadoop.hbase.classification.InterfaceAudience;<a name="line.23"></a> <span class="sourceLineNo">024</span>import org.apache.hadoop.hbase.classification.InterfaceStability;<a name="line.24"></a> -<span class="sourceLineNo">025</span>import org.apache.hadoop.hbase.procedure2.Procedure;<a name="line.25"></a> -<span class="sourceLineNo">026</span><a name="line.26"></a> -<span class="sourceLineNo">027</span>/**<a name="line.27"></a> -<span class="sourceLineNo">028</span> * The ProcedureStore is used by the executor to persist the state of each procedure execution.<a name="line.28"></a> -<span class="sourceLineNo">029</span> * This allows to resume the execution of pending/in-progress procedures in case<a name="line.29"></a> -<span class="sourceLineNo">030</span> * of machine failure or service shutdown.<a name="line.30"></a> -<span class="sourceLineNo">031</span> */<a name="line.31"></a> -<span class="sourceLineNo">032</span>@InterfaceAudience.Private<a name="line.32"></a> -<span class="sourceLineNo">033</span>@InterfaceStability.Evolving<a name="line.33"></a> -<span class="sourceLineNo">034</span>public interface ProcedureStore {<a name="line.34"></a> -<span class="sourceLineNo">035</span> /**<a name="line.35"></a> -<span class="sourceLineNo">036</span> * Store listener interface.<a name="line.36"></a> -<span class="sourceLineNo">037</span> * The main process should register a listener and respond to the store events.<a name="line.37"></a> -<span class="sourceLineNo">038</span> */<a name="line.38"></a> -<span class="sourceLineNo">039</span> public interface ProcedureStoreListener {<a name="line.39"></a> -<span class="sourceLineNo">040</span> /**<a name="line.40"></a> -<span class="sourceLineNo">041</span> * triggered when the store sync is completed.<a name="line.41"></a> -<span class="sourceLineNo">042</span> */<a name="line.42"></a> -<span class="sourceLineNo">043</span> void postSync();<a name="line.43"></a> -<span class="sourceLineNo">044</span><a name="line.44"></a> -<span class="sourceLineNo">045</span> /**<a name="line.45"></a> -<span class="sourceLineNo">046</span> * triggered when the store is not able to write out data.<a name="line.46"></a> -<span class="sourceLineNo">047</span> * the main process should abort.<a name="line.47"></a> -<span class="sourceLineNo">048</span> */<a name="line.48"></a> -<span class="sourceLineNo">049</span> void abortProcess();<a name="line.49"></a> -<span class="sourceLineNo">050</span> }<a name="line.50"></a> -<span class="sourceLineNo">051</span><a name="line.51"></a> -<span class="sourceLineNo">052</span> /**<a name="line.52"></a> -<span class="sourceLineNo">053</span> * An Iterator over a collection of Procedure<a name="line.53"></a> -<span class="sourceLineNo">054</span> */<a name="line.54"></a> -<span class="sourceLineNo">055</span> public interface ProcedureIterator {<a name="line.55"></a> -<span class="sourceLineNo">056</span> /**<a name="line.56"></a> -<span class="sourceLineNo">057</span> * Reset the Iterator by seeking to the beginning of the list.<a name="line.57"></a> -<span class="sourceLineNo">058</span> */<a name="line.58"></a> -<span class="sourceLineNo">059</span> void reset();<a name="line.59"></a> -<span class="sourceLineNo">060</span><a name="line.60"></a> -<span class="sourceLineNo">061</span> /**<a name="line.61"></a> -<span class="sourceLineNo">062</span> * Returns true if the iterator has more elements.<a name="line.62"></a> -<span class="sourceLineNo">063</span> * (In other words, returns true if next() would return a Procedure<a name="line.63"></a> -<span class="sourceLineNo">064</span> * rather than throwing an exception.)<a name="line.64"></a> -<span class="sourceLineNo">065</span> * @return true if the iterator has more procedures<a name="line.65"></a> -<span class="sourceLineNo">066</span> */<a name="line.66"></a> -<span class="sourceLineNo">067</span> boolean hasNext();<a name="line.67"></a> -<span class="sourceLineNo">068</span><a name="line.68"></a> -<span class="sourceLineNo">069</span> /**<a name="line.69"></a> -<span class="sourceLineNo">070</span> * Returns the next procedure in the iteration.<a name="line.70"></a> -<span class="sourceLineNo">071</span> * @throws IOException if there was an error fetching/deserializing the procedure<a name="line.71"></a> -<span class="sourceLineNo">072</span> * @return the next procedure in the iteration.<a name="line.72"></a> -<span class="sourceLineNo">073</span> */<a name="line.73"></a> -<span class="sourceLineNo">074</span> Procedure next() throws IOException;<a name="line.74"></a> -<span class="sourceLineNo">075</span> }<a name="line.75"></a> -<span class="sourceLineNo">076</span><a name="line.76"></a> -<span class="sourceLineNo">077</span> /**<a name="line.77"></a> -<span class="sourceLineNo">078</span> * Interface passed to the ProcedureStore.load() method to handle the store-load events.<a name="line.78"></a> -<span class="sourceLineNo">079</span> */<a name="line.79"></a> -<span class="sourceLineNo">080</span> public interface ProcedureLoader {<a name="line.80"></a> -<span class="sourceLineNo">081</span> /**<a name="line.81"></a> -<span class="sourceLineNo">082</span> * Called by ProcedureStore.load() to notify about the maximum proc-id in the store.<a name="line.82"></a> -<span class="sourceLineNo">083</span> * @param maxProcId the highest proc-id in the store<a name="line.83"></a> +<span class="sourceLineNo">025</span>import org.apache.hadoop.hbase.ProcedureInfo;<a name="line.25"></a> +<span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.procedure2.Procedure;<a name="line.26"></a> +<span class="sourceLineNo">027</span><a name="line.27"></a> +<span class="sourceLineNo">028</span>/**<a name="line.28"></a> +<span class="sourceLineNo">029</span> * The ProcedureStore is used by the executor to persist the state of each procedure execution.<a name="line.29"></a> +<span class="sourceLineNo">030</span> * This allows to resume the execution of pending/in-progress procedures in case<a name="line.30"></a> +<span class="sourceLineNo">031</span> * of machine failure or service shutdown.<a name="line.31"></a> +<span class="sourceLineNo">032</span> */<a name="line.32"></a> +<span class="sourceLineNo">033</span>@InterfaceAudience.Private<a name="line.33"></a> +<span class="sourceLineNo">034</span>@InterfaceStability.Evolving<a name="line.34"></a> +<span class="sourceLineNo">035</span>public interface ProcedureStore {<a name="line.35"></a> +<span class="sourceLineNo">036</span> /**<a name="line.36"></a> +<span class="sourceLineNo">037</span> * Store listener interface.<a name="line.37"></a> +<span class="sourceLineNo">038</span> * The main process should register a listener and respond to the store events.<a name="line.38"></a> +<span class="sourceLineNo">039</span> */<a name="line.39"></a> +<span class="sourceLineNo">040</span> public interface ProcedureStoreListener {<a name="line.40"></a> +<span class="sourceLineNo">041</span> /**<a name="line.41"></a> +<span class="sourceLineNo">042</span> * triggered when the store sync is completed.<a name="line.42"></a> +<span class="sourceLineNo">043</span> */<a name="line.43"></a> +<span class="sourceLineNo">044</span> void postSync();<a name="line.44"></a> +<span class="sourceLineNo">045</span><a name="line.45"></a> +<span class="sourceLineNo">046</span> /**<a name="line.46"></a> +<span class="sourceLineNo">047</span> * triggered when the store is not able to write out data.<a name="line.47"></a> +<span class="sourceLineNo">048</span> * the main process should abort.<a name="line.48"></a> +<span class="sourceLineNo">049</span> */<a name="line.49"></a> +<span class="sourceLineNo">050</span> void abortProcess();<a name="line.50"></a> +<span class="sourceLineNo">051</span> }<a name="line.51"></a> +<span class="sourceLineNo">052</span><a name="line.52"></a> +<span class="sourceLineNo">053</span> /**<a name="line.53"></a> +<span class="sourceLineNo">054</span> * An Iterator over a collection of Procedure<a name="line.54"></a> +<span class="sourceLineNo">055</span> */<a name="line.55"></a> +<span class="sourceLineNo">056</span> public interface ProcedureIterator {<a name="line.56"></a> +<span class="sourceLineNo">057</span> /**<a name="line.57"></a> +<span class="sourceLineNo">058</span> * Reset the Iterator by seeking to the beginning of the list.<a name="line.58"></a> +<span class="sourceLineNo">059</span> */<a name="line.59"></a> +<span class="sourceLineNo">060</span> void reset();<a name="line.60"></a> +<span class="sourceLineNo">061</span><a name="line.61"></a> +<span class="sourceLineNo">062</span> /**<a name="line.62"></a> +<span class="sourceLineNo">063</span> * Returns true if the iterator has more elements.<a name="line.63"></a> +<span class="sourceLineNo">064</span> * (In other words, returns true if next() would return a Procedure<a name="line.64"></a> +<span class="sourceLineNo">065</span> * rather than throwing an exception.)<a name="line.65"></a> +<span class="sourceLineNo">066</span> * @return true if the iterator has more procedures<a name="line.66"></a> +<span class="sourceLineNo">067</span> */<a name="line.67"></a> +<span class="sourceLineNo">068</span> boolean hasNext();<a name="line.68"></a> +<span class="sourceLineNo">069</span><a name="line.69"></a> +<span class="sourceLineNo">070</span> /**<a name="line.70"></a> +<span class="sourceLineNo">071</span> * @return true if the iterator next element is a completed procedure.<a name="line.71"></a> +<span class="sourceLineNo">072</span> */<a name="line.72"></a> +<span class="sourceLineNo">073</span> boolean isNextCompleted();<a name="line.73"></a> +<span class="sourceLineNo">074</span><a name="line.74"></a> +<span class="sourceLineNo">075</span> /**<a name="line.75"></a> +<span class="sourceLineNo">076</span> * Skip the next procedure<a name="line.76"></a> +<span class="sourceLineNo">077</span> */<a name="line.77"></a> +<span class="sourceLineNo">078</span> void skipNext();<a name="line.78"></a> +<span class="sourceLineNo">079</span><a name="line.79"></a> +<span class="sourceLineNo">080</span> /**<a name="line.80"></a> +<span class="sourceLineNo">081</span> * Returns the next procedure in the iteration.<a name="line.81"></a> +<span class="sourceLineNo">082</span> * @throws IOException if there was an error fetching/deserializing the procedure<a name="line.82"></a> +<span class="sourceLineNo">083</span> * @return the next procedure in the iteration.<a name="line.83"></a> <span class="sourceLineNo">084</span> */<a name="line.84"></a> -<span class="sourceLineNo">085</span> void setMaxProcId(long maxProcId);<a name="line.85"></a> +<span class="sourceLineNo">085</span> Procedure nextAsProcedure() throws IOException;<a name="line.85"></a> <span class="sourceLineNo">086</span><a name="line.86"></a> <span class="sourceLineNo">087</span> /**<a name="line.87"></a> -<span class="sourceLineNo">088</span> * Called by the ProcedureStore.load() every time a set of procedures are ready to be executed.<a name="line.88"></a> -<span class="sourceLineNo">089</span> * The ProcedureIterator passed to the method, has the procedure sorted in replay-order.<a name="line.89"></a> -<span class="sourceLineNo">090</span> * @param procIter iterator over the procedures ready to be added to the executor.<a name="line.90"></a> -<span class="sourceLineNo">091</span> */<a name="line.91"></a> -<span class="sourceLineNo">092</span> void load(ProcedureIterator procIter) throws IOException;<a name="line.92"></a> -<span class="sourceLineNo">093</span><a name="line.93"></a> -<span class="sourceLineNo">094</span> /**<a name="line.94"></a> -<span class="sourceLineNo">095</span> * Called by the ProcedureStore.load() in case we have procedures not-ready to be added to<a name="line.95"></a> -<span class="sourceLineNo">096</span> * the executor, which probably means they are corrupted since some information/link is missing.<a name="line.96"></a> -<span class="sourceLineNo">097</span> * @param procIter iterator over the procedures not ready to be added to the executor, corrupted<a name="line.97"></a> -<span class="sourceLineNo">098</span> */<a name="line.98"></a> -<span class="sourceLineNo">099</span> void handleCorrupted(ProcedureIterator procIter) throws IOException;<a name="line.99"></a> -<span class="sourceLineNo">100</span> }<a name="line.100"></a> -<span class="sourceLineNo">101</span><a name="line.101"></a> -<span class="sourceLineNo">102</span> /**<a name="line.102"></a> -<span class="sourceLineNo">103</span> * Add the listener to the notification list.<a name="line.103"></a> -<span class="sourceLineNo">104</span> * @param listener The AssignmentListener to register<a name="line.104"></a> -<span class="sourceLineNo">105</span> */<a name="line.105"></a> -<span class="sourceLineNo">106</span> void registerListener(ProcedureStoreListener listener);<a name="line.106"></a> -<span class="sourceLineNo">107</span><a name="line.107"></a> -<span class="sourceLineNo">108</span> /**<a name="line.108"></a> -<span class="sourceLineNo">109</span> * Remove the listener from the notification list.<a name="line.109"></a> -<span class="sourceLineNo">110</span> * @param listener The AssignmentListener to unregister<a name="line.110"></a> -<span class="sourceLineNo">111</span> * @return true if the listner was in the list and it was removed, otherwise false.<a name="line.111"></a> -<span class="sourceLineNo">112</span> */<a name="line.112"></a> -<span class="sourceLineNo">113</span> boolean unregisterListener(ProcedureStoreListener listener);<a name="line.113"></a> -<span class="sourceLineNo">114</span><a name="line.114"></a> -<span class="sourceLineNo">115</span> /**<a name="line.115"></a> -<span class="sourceLineNo">116</span> * Start/Open the procedure store<a name="line.116"></a> -<span class="sourceLineNo">117</span> * @param numThreads<a name="line.117"></a> -<span class="sourceLineNo">118</span> */<a name="line.118"></a> -<span class="sourceLineNo">119</span> void start(int numThreads) throws IOException;<a name="line.119"></a> -<span class="sourceLineNo">120</span><a name="line.120"></a> -<span class="sourceLineNo">121</span> /**<a name="line.121"></a> -<span class="sourceLineNo">122</span> * Stop/Close the procedure store<a name="line.122"></a> -<span class="sourceLineNo">123</span> * @param abort true if the stop is an abort<a name="line.123"></a> -<span class="sourceLineNo">124</span> */<a name="line.124"></a> -<span class="sourceLineNo">125</span> void stop(boolean abort);<a name="line.125"></a> -<span class="sourceLineNo">126</span><a name="line.126"></a> -<span class="sourceLineNo">127</span> /**<a name="line.127"></a> -<span class="sourceLineNo">128</span> * @return true if the store is running, otherwise false.<a name="line.128"></a> -<span class="sourceLineNo">129</span> */<a name="line.129"></a> -<span class="sourceLineNo">130</span> boolean isRunning();<a name="line.130"></a> -<span class="sourceLineNo">131</span><a name="line.131"></a> -<span class="sourceLineNo">132</span> /**<a name="line.132"></a> -<span class="sourceLineNo">133</span> * @return the number of threads/slots passed to start()<a name="line.133"></a> +<span class="sourceLineNo">088</span> * @return the next procedure in the iteration as ProcedureInfo.<a name="line.88"></a> +<span class="sourceLineNo">089</span> */<a name="line.89"></a> +<span class="sourceLineNo">090</span> ProcedureInfo nextAsProcedureInfo();<a name="line.90"></a> +<span class="sourceLineNo">091</span> }<a name="line.91"></a> +<span class="sourceLineNo">092</span><a name="line.92"></a> +<span class="sourceLineNo">093</span> /**<a name="line.93"></a> +<span class="sourceLineNo">094</span> * Interface passed to the ProcedureStore.load() method to handle the store-load events.<a name="line.94"></a> +<span class="sourceLineNo">095</span> */<a name="line.95"></a> +<span class="sourceLineNo">096</span> public interface ProcedureLoader {<a name="line.96"></a> +<span class="sourceLineNo">097</span> /**<a name="line.97"></a> +<span class="sourceLineNo">098</span> * Called by ProcedureStore.load() to notify about the maximum proc-id in the store.<a name="line.98"></a> +<span class="sourceLineNo">099</span> * @param maxProcId the highest proc-id in the store<a name="line.99"></a> +<span class="sourceLineNo">100</span> */<a name="line.100"></a> +<span class="sourceLineNo">101</span> void setMaxProcId(long maxProcId);<a name="line.101"></a> +<span class="sourceLineNo">102</span><a name="line.102"></a> +<span class="sourceLineNo">103</span> /**<a name="line.103"></a> +<span class="sourceLineNo">104</span> * Called by the ProcedureStore.load() every time a set of procedures are ready to be executed.<a name="line.104"></a> +<span class="sourceLineNo">105</span> * The ProcedureIterator passed to the method, has the procedure sorted in replay-order.<a name="line.105"></a> +<span class="sourceLineNo">106</span> * @param procIter iterator over the procedures ready to be added to the executor.<a name="line.106"></a> +<span class="sourceLineNo">107</span> */<a name="line.107"></a> +<span class="sourceLineNo">108</span> void load(ProcedureIterator procIter) throws IOException;<a name="line.108"></a> +<span class="sourceLineNo">109</span><a name="line.109"></a> +<span class="sourceLineNo">110</span> /**<a name="line.110"></a> +<span class="sourceLineNo">111</span> * Called by the ProcedureStore.load() in case we have procedures not-ready to be added to<a name="line.111"></a> +<span class="sourceLineNo">112</span> * the executor, which probably means they are corrupted since some information/link is missing.<a name="line.112"></a> +<span class="sourceLineNo">113</span> * @param procIter iterator over the procedures not ready to be added to the executor, corrupted<a name="line.113"></a> +<span class="sourceLineNo">114</span> */<a name="line.114"></a> +<span class="sourceLineNo">115</span> void handleCorrupted(ProcedureIterator procIter) throws IOException;<a name="line.115"></a> +<span class="sourceLineNo">116</span> }<a name="line.116"></a> +<span class="sourceLineNo">117</span><a name="line.117"></a> +<span class="sourceLineNo">118</span> /**<a name="line.118"></a> +<span class="sourceLineNo">119</span> * Add the listener to the notification list.<a name="line.119"></a> +<span class="sourceLineNo">120</span> * @param listener The AssignmentListener to register<a name="line.120"></a> +<span class="sourceLineNo">121</span> */<a name="line.121"></a> +<span class="sourceLineNo">122</span> void registerListener(ProcedureStoreListener listener);<a name="line.122"></a> +<span class="sourceLineNo">123</span><a name="line.123"></a> +<span class="sourceLineNo">124</span> /**<a name="line.124"></a> +<span class="sourceLineNo">125</span> * Remove the listener from the notification list.<a name="line.125"></a> +<span class="sourceLineNo">126</span> * @param listener The AssignmentListener to unregister<a name="line.126"></a> +<span class="sourceLineNo">127</span> * @return true if the listner was in the list and it was removed, otherwise false.<a name="line.127"></a> +<span class="sourceLineNo">128</span> */<a name="line.128"></a> +<span class="sourceLineNo">129</span> boolean unregisterListener(ProcedureStoreListener listener);<a name="line.129"></a> +<span class="sourceLineNo">130</span><a name="line.130"></a> +<span class="sourceLineNo">131</span> /**<a name="line.131"></a> +<span class="sourceLineNo">132</span> * Start/Open the procedure store<a name="line.132"></a> +<span class="sourceLineNo">133</span> * @param numThreads<a name="line.133"></a> <span class="sourceLineNo">134</span> */<a name="line.134"></a> -<span class="sourceLineNo">135</span> int getNumThreads();<a name="line.135"></a> +<span class="sourceLineNo">135</span> void start(int numThreads) throws IOException;<a name="line.135"></a> <span class="sourceLineNo">136</span><a name="line.136"></a> <span class="sourceLineNo">137</span> /**<a name="line.137"></a> -<span class="sourceLineNo">138</span> * Acquire the lease for the procedure store.<a name="line.138"></a> -<span class="sourceLineNo">139</span> */<a name="line.139"></a> -<span class="sourceLineNo">140</span> void recoverLease() throws IOException;<a name="line.140"></a> -<span class="sourceLineNo">141</span><a name="line.141"></a> -<span class="sourceLineNo">142</span> /**<a name="line.142"></a> -<span class="sourceLineNo">143</span> * Load the Procedures in the store.<a name="line.143"></a> -<span class="sourceLineNo">144</span> * @param loader the ProcedureLoader that will handle the store-load events<a name="line.144"></a> +<span class="sourceLineNo">138</span> * Stop/Close the procedure store<a name="line.138"></a> +<span class="sourceLineNo">139</span> * @param abort true if the stop is an abort<a name="line.139"></a> +<span class="sourceLineNo">140</span> */<a name="line.140"></a> +<span class="sourceLineNo">141</span> void stop(boolean abort);<a name="line.141"></a> +<span class="sourceLineNo">142</span><a name="line.142"></a> +<span class="sourceLineNo">143</span> /**<a name="line.143"></a> +<span class="sourceLineNo">144</span> * @return true if the store is running, otherwise false.<a name="line.144"></a> <span class="sourceLineNo">145</span> */<a name="line.145"></a> -<span class="sourceLineNo">146</span> void load(ProcedureLoader loader) throws IOException;<a name="line.146"></a> +<span class="sourceLineNo">146</span> boolean isRunning();<a name="line.146"></a> <span class="sourceLineNo">147</span><a name="line.147"></a> <span class="sourceLineNo">148</span> /**<a name="line.148"></a> -<span class="sourceLineNo">149</span> * When a procedure is submitted to the executor insert(proc, null) will be called.<a name="line.149"></a> -<span class="sourceLineNo">150</span> * 'proc' has a 'RUNNABLE' state and the initial information required to start up.<a name="line.150"></a> -<span class="sourceLineNo">151</span> *<a name="line.151"></a> -<span class="sourceLineNo">152</span> * When a procedure is executed and it returns children insert(proc, subprocs) will be called.<a name="line.152"></a> -<span class="sourceLineNo">153</span> * 'proc' has a 'WAITING' state and an update state.<a name="line.153"></a> -<span class="sourceLineNo">154</span> * 'subprocs' are the children in 'RUNNABLE' state with the initial information.<a name="line.154"></a> -<span class="sourceLineNo">155</span> *<a name="line.155"></a> -<span class="sourceLineNo">156</span> * @param proc the procedure to serialize and write to the store.<a name="line.156"></a> -<span class="sourceLineNo">157</span> * @param subprocs the newly created child of the proc.<a name="line.157"></a> -<span class="sourceLineNo">158</span> */<a name="line.158"></a> -<span class="sourceLineNo">159</span> void insert(Procedure proc, Procedure[] subprocs);<a name="line.159"></a> -<span class="sourceLineNo">160</span><a name="line.160"></a> -<span class="sourceLineNo">161</span> /**<a name="line.161"></a> -<span class="sourceLineNo">162</span> * The specified procedure was executed,<a name="line.162"></a> -<span class="sourceLineNo">163</span> * and the new state should be written to the store.<a name="line.163"></a> -<span class="sourceLineNo">164</span> * @param proc the procedure to serialize and write to the store.<a name="line.164"></a> -<span class="sourceLineNo">165</span> */<a name="line.165"></a> -<span class="sourceLineNo">166</span> void update(Procedure proc);<a name="line.166"></a> -<span class="sourceLineNo">167</span><a name="line.167"></a> -<span class="sourceLineNo">168</span> /**<a name="line.168"></a> -<span class="sourceLineNo">169</span> * The specified procId was removed from the executor,<a name="line.169"></a> -<span class="sourceLineNo">170</span> * due to completion, abort or failure.<a name="line.170"></a> -<span class="sourceLineNo">171</span> * The store implementor should remove all the information about the specified procId.<a name="line.171"></a> -<span class="sourceLineNo">172</span> * @param procId the ID of the procedure to remove.<a name="line.172"></a> -<span class="sourceLineNo">173</span> */<a name="line.173"></a> -<span class="sourceLineNo">174</span> void delete(long procId);<a name="line.174"></a> -<span class="sourceLineNo">175</span>}<a name="line.175"></a> +<span class="sourceLineNo">149</span> * @return the number of threads/slots passed to start()<a name="line.149"></a> +<span class="sourceLineNo">150</span> */<a name="line.150"></a> +<span class="sourceLineNo">151</span> int getNumThreads();<a name="line.151"></a> +<span class="sourceLineNo">152</span><a name="line.152"></a> +<span class="sourceLineNo">153</span> /**<a name="line.153"></a> +<span class="sourceLineNo">154</span> * Acquire the lease for the procedure store.<a name="line.154"></a> +<span class="sourceLineNo">155</span> */<a name="line.155"></a> +<span class="sourceLineNo">156</span> void recoverLease() throws IOException;<a name="line.156"></a> +<span class="sourceLineNo">157</span><a name="line.157"></a> +<span class="sourceLineNo">158</span> /**<a name="line.158"></a> +<span class="sourceLineNo">159</span> * Load the Procedures in the store.<a name="line.159"></a> +<span class="sourceLineNo">160</span> * @param loader the ProcedureLoader that will handle the store-load events<a name="line.160"></a> +<span class="sourceLineNo">161</span> */<a name="line.161"></a> +<span class="sourceLineNo">162</span> void load(ProcedureLoader loader) throws IOException;<a name="line.162"></a> +<span class="sourceLineNo">163</span><a name="line.163"></a> +<span class="sourceLineNo">164</span> /**<a name="line.164"></a> +<span class="sourceLineNo">165</span> * When a procedure is submitted to the executor insert(proc, null) will be called.<a name="line.165"></a> +<span class="sourceLineNo">166</span> * 'proc' has a 'RUNNABLE' state and the initial information required to start up.<a name="line.166"></a> +<span class="sourceLineNo">167</span> *<a name="line.167"></a> +<span class="sourceLineNo">168</span> * When a procedure is executed and it returns children insert(proc, subprocs) will be called.<a name="line.168"></a> +<span class="sourceLineNo">169</span> * 'proc' has a 'WAITING' state and an update state.<a name="line.169"></a> +<span class="sourceLineNo">170</span> * 'subprocs' are the children in 'RUNNABLE' state with the initial information.<a name="line.170"></a> +<span class="sourceLineNo">171</span> *<a name="line.171"></a> +<span class="sourceLineNo">172</span> * @param proc the procedure to serialize and write to the store.<a name="line.172"></a> +<span class="sourceLineNo">173</span> * @param subprocs the newly created child of the proc.<a name="line.173"></a> +<span class="sourceLineNo">174</span> */<a name="line.174"></a> +<span class="sourceLineNo">175</span> void insert(Procedure proc, Procedure[] subprocs);<a name="line.175"></a> +<span class="sourceLineNo">176</span><a name="line.176"></a> +<span class="sourceLineNo">177</span> /**<a name="line.177"></a> +<span class="sourceLineNo">178</span> * The specified procedure was executed,<a name="line.178"></a> +<span class="sourceLineNo">179</span> * and the new state should be written to the store.<a name="line.179"></a> +<span class="sourceLineNo">180</span> * @param proc the procedure to serialize and write to the store.<a name="line.180"></a> +<span class="sourceLineNo">181</span> */<a name="line.181"></a> +<span class="sourceLineNo">182</span> void update(Procedure proc);<a name="line.182"></a> +<span class="sourceLineNo">183</span><a name="line.183"></a> +<span class="sourceLineNo">184</span> /**<a name="line.184"></a> +<span class="sourceLineNo">185</span> * The specified procId was removed from the executor,<a name="line.185"></a> +<span class="sourceLineNo">186</span> * due to completion, abort or failure.<a name="line.186"></a> +<span class="sourceLineNo">187</span> * The store implementor should remove all the information about the specified procId.<a name="line.187"></a> +<span class="sourceLineNo">188</span> * @param procId the ID of the procedure to remove.<a name="line.188"></a> +<span class="sourceLineNo">189</span> */<a name="line.189"></a> +<span class="sourceLineNo">190</span> void delete(long procId);<a name="line.190"></a> +<span class="sourceLineNo">191</span>}<a name="line.191"></a>
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/f8d6f420/devapidocs/src-html/org/apache/hadoop/hbase/procedure2/store/ProcedureStoreTracker.BitSetNode.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/procedure2/store/ProcedureStoreTracker.BitSetNode.html b/devapidocs/src-html/org/apache/hadoop/hbase/procedure2/store/ProcedureStoreTracker.BitSetNode.html index f6c7b80..1c21359 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/procedure2/store/ProcedureStoreTracker.BitSetNode.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/procedure2/store/ProcedureStoreTracker.BitSetNode.html @@ -422,180 +422,182 @@ <span class="sourceLineNo">414</span> node.updateState(procId, isDeleted);<a name="line.414"></a> <span class="sourceLineNo">415</span> }<a name="line.415"></a> <span class="sourceLineNo">416</span><a name="line.416"></a> -<span class="sourceLineNo">417</span> public void clear() {<a name="line.417"></a> -<span class="sourceLineNo">418</span> this.map.clear();<a name="line.418"></a> -<span class="sourceLineNo">419</span> resetUpdates();<a name="line.419"></a> -<span class="sourceLineNo">420</span> }<a name="line.420"></a> -<span class="sourceLineNo">421</span><a name="line.421"></a> -<span class="sourceLineNo">422</span> public DeleteState isDeleted(long procId) {<a name="line.422"></a> -<span class="sourceLineNo">423</span> Map.Entry<Long, BitSetNode> entry = map.floorEntry(procId);<a name="line.423"></a> -<span class="sourceLineNo">424</span> if (entry != null && entry.getValue().contains(procId)) {<a name="line.424"></a> -<span class="sourceLineNo">425</span> BitSetNode node = entry.getValue();<a name="line.425"></a> -<span class="sourceLineNo">426</span> DeleteState state = node.isDeleted(procId);<a name="line.426"></a> -<span class="sourceLineNo">427</span> return partial && !node.isUpdated(procId) ? DeleteState.MAYBE : state;<a name="line.427"></a> -<span class="sourceLineNo">428</span> }<a name="line.428"></a> -<span class="sourceLineNo">429</span> return partial ? DeleteState.MAYBE : DeleteState.YES;<a name="line.429"></a> -<span class="sourceLineNo">430</span> }<a name="line.430"></a> -<span class="sourceLineNo">431</span><a name="line.431"></a> -<span class="sourceLineNo">432</span> public long getMinProcId() {<a name="line.432"></a> -<span class="sourceLineNo">433</span> // TODO: Cache?<a name="line.433"></a> -<span class="sourceLineNo">434</span> Map.Entry<Long, BitSetNode> entry = map.firstEntry();<a name="line.434"></a> -<span class="sourceLineNo">435</span> return entry == null ? 0 : entry.getValue().getMinProcId();<a name="line.435"></a> -<span class="sourceLineNo">436</span> }<a name="line.436"></a> -<span class="sourceLineNo">437</span><a name="line.437"></a> -<span class="sourceLineNo">438</span> public void setKeepDeletes(boolean keepDeletes) {<a name="line.438"></a> -<span class="sourceLineNo">439</span> this.keepDeletes = keepDeletes;<a name="line.439"></a> -<span class="sourceLineNo">440</span> if (!keepDeletes) {<a 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(this.partial && !isPartial) {<a name="line.452"></a> -<span class="sourceLineNo">453</span> for (Map.Entry<Long, BitSetNode> entry : map.entrySet()) {<a name="line.453"></a> -<span class="sourceLineNo">454</span> entry.getValue().unsetPartialFlag();<a name="line.454"></a> -<span class="sourceLineNo">455</span> }<a name="line.455"></a> -<span class="sourceLineNo">456</span> }<a name="line.456"></a> -<span class="sourceLineNo">457</span> this.partial = isPartial;<a name="line.457"></a> -<span class="sourceLineNo">458</span> }<a name="line.458"></a> -<span class="sourceLineNo">459</span><a name="line.459"></a> -<span class="sourceLineNo">460</span> public boolean isEmpty() {<a name="line.460"></a> -<span class="sourceLineNo">461</span> for (Map.Entry<Long, BitSetNode> entry : map.entrySet()) {<a name="line.461"></a> -<span class="sourceLineNo">462</span> if (entry.getValue().isEmpty() == false) {<a name="line.462"></a> -<span class="sourceLineNo">463</span> return false;<a 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class="sourceLineNo">510</span> BitSetNode rightNode = null;<a name="line.510"></a> -<span class="sourceLineNo">511</span> boolean rightCanGrow = false;<a name="line.511"></a> -<span class="sourceLineNo">512</span> Map.Entry<Long, BitSetNode> rightEntry = map.ceilingEntry(procId);<a name="line.512"></a> -<span class="sourceLineNo">513</span> if (rightEntry != null) {<a name="line.513"></a> -<span class="sourceLineNo">514</span> rightNode = rightEntry.getValue();<a name="line.514"></a> -<span class="sourceLineNo">515</span> rightCanGrow = rightNode.canGrow(procId);<a name="line.515"></a> -<span class="sourceLineNo">516</span> if (leftNode != null) {<a name="line.516"></a> -<span class="sourceLineNo">517</span> if (leftNode.canMerge(rightNode)) {<a name="line.517"></a> -<span class="sourceLineNo">518</span> // merge left and right node<a name="line.518"></a> -<span class="sourceLineNo">519</span> return mergeNodes(leftNode, rightNode);<a name="line.519"></a> -<span 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DeleteState.MAYBE : state;<a name="line.429"></a> +<span class="sourceLineNo">430</span> }<a name="line.430"></a> +<span class="sourceLineNo">431</span> return partial ? DeleteState.MAYBE : DeleteState.YES;<a name="line.431"></a> +<span class="sourceLineNo">432</span> }<a name="line.432"></a> +<span class="sourceLineNo">433</span><a name="line.433"></a> +<span class="sourceLineNo">434</span> public long getMinProcId() {<a name="line.434"></a> +<span class="sourceLineNo">435</span> // TODO: Cache?<a name="line.435"></a> +<span class="sourceLineNo">436</span> Map.Entry<Long, BitSetNode> entry = map.firstEntry();<a name="line.436"></a> +<span class="sourceLineNo">437</span> return entry == null ? 0 : entry.getValue().getMinProcId();<a name="line.437"></a> +<span class="sourceLineNo">438</span> }<a name="line.438"></a> +<span class="sourceLineNo">439</span><a name="line.439"></a> +<span class="sourceLineNo">440</span> public void setKeepDeletes(boolean keepDeletes) {<a name="line.440"></a> +<span class="sourceLineNo">441</span> this.keepDeletes = keepDeletes;<a name="line.441"></a> +<span class="sourceLineNo">442</span> if (!keepDeletes) {<a 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name="line.465"></a> +<span class="sourceLineNo">466</span> }<a name="line.466"></a> +<span class="sourceLineNo">467</span> }<a name="line.467"></a> +<span class="sourceLineNo">468</span> return true;<a name="line.468"></a> +<span class="sourceLineNo">469</span> }<a name="line.469"></a> +<span class="sourceLineNo">470</span><a name="line.470"></a> +<span class="sourceLineNo">471</span> public boolean isUpdated() {<a name="line.471"></a> +<span class="sourceLineNo">472</span> for (Map.Entry<Long, BitSetNode> entry : map.entrySet()) {<a name="line.472"></a> +<span class="sourceLineNo">473</span> if (entry.getValue().isUpdated() == false) {<a name="line.473"></a> +<span class="sourceLineNo">474</span> return false;<a name="line.474"></a> +<span class="sourceLineNo">475</span> }<a name="line.475"></a> +<span class="sourceLineNo">476</span> }<a name="line.476"></a> +<span class="sourceLineNo">477</span> return true;<a name="line.477"></a> +<span class="sourceLineNo">478</span> }<a name="line.478"></a> +<span class="sourceLineNo">479</span><a name="line.479"></a> +<span class="sourceLineNo">480</span> public boolean isTracking(long minId, long maxId) {<a name="line.480"></a> +<span class="sourceLineNo">481</span> // TODO: we can make it more precise, instead of looking just at the block<a name="line.481"></a> +<span class="sourceLineNo">482</span> return map.floorEntry(minId) != null || map.floorEntry(maxId) != null;<a name="line.482"></a> +<span class="sourceLineNo">483</span> }<a name="line.483"></a> +<span class="sourceLineNo">484</span><a name="line.484"></a> +<span class="sourceLineNo">485</span> public void resetUpdates() {<a name="line.485"></a> +<span class="sourceLineNo">486</span> for (Map.Entry<Long, BitSetNode> entry : map.entrySet()) {<a name="line.486"></a> +<span class="sourceLineNo">487</span> entry.getValue().resetUpdates();<a name="line.487"></a> +<span class="sourceLineNo">488</span> }<a name="line.488"></a> +<span class="sourceLineNo">489</span> minUpdatedProcId = Long.MAX_VALUE;<a name="line.489"></a> +<span class="sourceLineNo">490</span> maxUpdatedProcId = Long.MIN_VALUE;<a name="line.490"></a> +<span class="sourceLineNo">491</span> }<a name="line.491"></a> +<span class="sourceLineNo">492</span><a name="line.492"></a> +<span class="sourceLineNo">493</span> public void undeleteAll() {<a name="line.493"></a> +<span class="sourceLineNo">494</span> for (Map.Entry<Long, BitSetNode> entry : map.entrySet()) {<a name="line.494"></a> +<span class="sourceLineNo">495</span> entry.getValue().undeleteAll();<a name="line.495"></a> +<span class="sourceLineNo">496</span> }<a name="line.496"></a> +<span class="sourceLineNo">497</span> }<a name="line.497"></a> +<span class="sourceLineNo">498</span><a name="line.498"></a> +<span class="sourceLineNo">499</span> private BitSetNode getOrCreateNode(final long procId) {<a name="line.499"></a> +<span class="sourceLineNo">500</span> // can procId fit in the left 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class="sourceLineNo">512</span> BitSetNode rightNode = null;<a name="line.512"></a> +<span class="sourceLineNo">513</span> boolean rightCanGrow = false;<a name="line.513"></a> +<span class="sourceLineNo">514</span> Map.Entry<Long, BitSetNode> rightEntry = map.ceilingEntry(procId);<a name="line.514"></a> +<span class="sourceLineNo">515</span> if (rightEntry != null) {<a name="line.515"></a> +<span class="sourceLineNo">516</span> rightNode = rightEntry.getValue();<a name="line.516"></a> +<span class="sourceLineNo">517</span> rightCanGrow = rightNode.canGrow(procId);<a name="line.517"></a> +<span class="sourceLineNo">518</span> if (leftNode != null) {<a name="line.518"></a> +<span class="sourceLineNo">519</span> if (leftNode.canMerge(rightNode)) {<a name="line.519"></a> +<span class="sourceLineNo">520</span> // merge left and right node<a name="line.520"></a> +<span class="sourceLineNo">521</span> return mergeNodes(leftNode, rightNode);<a name="line.521"></a> +<span class="sourceLineNo">522</span> }<a name="line.522"></a> +<span class="sourceLineNo">523</span><a name="line.523"></a> +<span class="sourceLineNo">524</span> if (leftCanGrow && rightCanGrow) {<a name="line.524"></a> +<span class="sourceLineNo">525</span> if ((procId - leftNode.getEnd()) <= (rightNode.getStart() - procId)) {<a name="line.525"></a> +<span class="sourceLineNo">526</span> // grow the left node<a name="line.526"></a> +<span class="sourceLineNo">527</span> return growNode(leftNode, procId);<a name="line.527"></a> +<span class="sourceLineNo">528</span> }<a name="line.528"></a> +<span class="sourceLineNo">529</span> // grow the right node<a name="line.529"></a> +<span class="sourceLineNo">530</span> return growNode(rightNode, procId);<a name="line.530"></a> +<span class="sourceLineNo">531</span> }<a name="line.531"></a> +<span class="sourceLineNo">532</span> }<a name="line.532"></a> +<span class="sourceLineNo">533</span> }<a name="line.533"></a> +<span class="sourceLineNo">534</span><a name="line.534"></a> +<span class="sourceLineNo">535</span> // grow the left node<a name="line.535"></a> +<span class="sourceLineNo">536</span> if (leftCanGrow) {<a name="line.536"></a> +<span class="sourceLineNo">537</span> return growNode(leftNode, procId);<a name="line.537"></a> +<span class="sourceLineNo">538</span> }<a name="line.538"></a> +<span class="sourceLineNo">539</span><a name="line.539"></a> +<span class="sourceLineNo">540</span> // grow the right node<a name="line.540"></a> +<span class="sourceLineNo">541</span> if (rightCanGrow) {<a name="line.541"></a> +<span class="sourceLineNo">542</span> return growNode(rightNode, procId);<a name="line.542"></a> +<span class="sourceLineNo">543</span> }<a name="line.543"></a> +<span class="sourceLineNo">544</span><a name="line.544"></a> +<span class="sourceLineNo">545</span> // add new node<a name="line.545"></a> +<span class="sourceLineNo">546</span> BitSetNode node = new BitSetNode(procId, partial);<a name="line.546"></a> +<span class="sourceLineNo">547</span> map.put(node.getStart(), node);<a name="line.547"></a> +<span class="sourceLineNo">548</span> return node;<a name="line.548"></a> +<span class="sourceLineNo">549</span> }<a name="line.549"></a> +<span class="sourceLineNo">550</span><a name="line.550"></a> +<span class="sourceLineNo">551</span> private BitSetNode growNode(BitSetNode node, long procId) {<a name="line.551"></a> +<span class="sourceLineNo">552</span> map.remove(node.getStart());<a name="line.552"></a> +<span class="sourceLineNo">553</span> node.grow(procId);<a name="line.553"></a> +<span class="sourceLineNo">554</span> map.put(node.getStart(), node);<a name="line.554"></a> +<span class="sourceLineNo">555</span> return node;<a name="line.555"></a> +<span class="sourceLineNo">556</span> }<a name="line.556"></a> +<span class="sourceLineNo">557</span><a name="line.557"></a> +<span class="sourceLineNo">558</span> private BitSetNode mergeNodes(BitSetNode leftNode, BitSetNode rightNode) {<a name="line.558"></a> +<span class="sourceLineNo">559</span> assert leftNode.getStart() < rightNode.getStart();<a name="line.559"></a> +<span class="sourceLineNo">560</span> leftNode.merge(rightNode);<a name="line.560"></a> +<span class="sourceLineNo">561</span> map.remove(rightNode.getStart());<a name="line.561"></a> +<span class="sourceLineNo">562</span> return leftNode;<a name="line.562"></a> +<span class="sourceLineNo">563</span> }<a name="line.563"></a> +<span class="sourceLineNo">564</span><a name="line.564"></a> +<span class="sourceLineNo">565</span> public void dump() {<a name="line.565"></a> +<span class="sourceLineNo">566</span> System.out.println("map " + map.size());<a name="line.566"></a> +<span class="sourceLineNo">567</span> System.out.println("isUpdated " + isUpdated());<a name="line.567"></a> +<span class="sourceLineNo">568</span> System.out.println("isEmpty " + isEmpty());<a name="line.568"></a> +<span class="sourceLineNo">569</span> 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name="line.579"></a> +<span class="sourceLineNo">580</span> builder.build().writeDelimitedTo(stream);<a name="line.580"></a> +<span class="sourceLineNo">581</span> }<a name="line.581"></a> +<span class="sourceLineNo">582</span><a name="line.582"></a> +<span class="sourceLineNo">583</span> public void readFrom(final InputStream stream) throws IOException {<a name="line.583"></a> +<span class="sourceLineNo">584</span> reset();<a name="line.584"></a> +<span class="sourceLineNo">585</span> final ProcedureProtos.ProcedureStoreTracker data =<a name="line.585"></a> +<span class="sourceLineNo">586</span> ProcedureProtos.ProcedureStoreTracker.parseDelimitedFrom(stream);<a name="line.586"></a> +<span class="sourceLineNo">587</span> for (ProcedureProtos.ProcedureStoreTracker.TrackerNode protoNode: data.getNodeList()) {<a name="line.587"></a> +<span class="sourceLineNo">588</span> final BitSetNode node = BitSetNode.convert(protoNode);<a name="line.588"></a> +<span class="sourceLineNo">589</span> map.put(node.getStart(), node);<a name="line.589"></a> +<span class="sourceLineNo">590</span> }<a name="line.590"></a> +<span class="sourceLineNo">591</span> }<a name="line.591"></a> +<span class="sourceLineNo">592</span>}<a name="line.592"></a>
